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such that 
for all real 
.
add up to zero. Find the maximum of 
in term of 
's, when 
's vary in real numbers such that 
.
be an odd prime and 
be integers so that the integers 
are divisible by . divides each of .
for some positive integers 
. Show that there must exist two among them one of which is entirely contained in the other.
for some positive integers . Show that there must exist two among them one of which is entirely contained in the other.
with the vertex 
. If 2 rectangles has the same or 
value, then one must be contained in another. Then there are at most 
other rectangles whose or value is less than 
or 
respectively. All the other rectangles will have 
value more than 
, so they all contain .
